13. Stockholders' Equity (Details 1) (USD $)	12 Months Ended
Dec. 31, 2012
Stockholders Equity Details 1
Number of Options Outstanding, Beginning	393,865
Number of Options Granted	10,000
Number of Options Exercised	(168,750)
Number of Options Forfeited
Number of Options Outstanding, Ending	235,115
Number of Options Exercisable	165,398
Weighted Average Exercise Price Outstanding, Beginning	$ 2.32
Weighted Average Exercise Price Granted	$ 4.81
Weighted Average Exercise Price Exercised	$ 2.12
Weighted Average Exercise Price Forfeited
Weighted Average Exercise Price Outstanding, Ending	$ 2.58
Weighted Average Exercise Price Exercisable	$ 2.48
Weighted Average Remaining Contractual Life (in years) Outstanding Beginning	2 years 3 months 11 days
Weighted Average Remaining Contractual Life (in years) Outstanding Granted	0 years
Weighted Average Remaining Contractual Life (in years) Outstanding Exercised	0 years
Weighted Average Remaining Contractual Life (in years) Outstanding Forfeited	0 years
Weighted Average Remaining Contractual Life (in years) Outstanding Ending	2 years 2 months 27 days
Weighted Average Remaining Contractual Life (in years) Exercisable	2 years 1 month 17 days
Aggregate Intrinsic Value Outstanding, Beginning	$ 498,913
Aggregate Intrinsic Value Granted	$ 600
Aggregate Intrinsic Value Exercised	515,281
Aggregate Intrinsic Value Forfeited/canceled
Aggregate Intrinsic Value Outstanding, Ending	539,485
Aggregate Intrinsic Value Exercisable	$ 395,556

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